768
FXUS01 KWBC 241955
PMDSPD
SHORT RANGE FORECAST DISCUSSION
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
255 PM EST MON FEB 24 2025
VALID 00Z TUE FEB 25 2025 - 00Z THU FEB 27 2025
...ATMOSPHERIC RIVER CONTINUES TO BRING HEAVY RAIN, GUSTY WINDS,
AND SCATTERED INSTANCES OF FLOODING TO THE NORTHWEST TODAY...
...SHOWERS AND THUNDERSTORMS WITH LOCALLY HEAVY RAINFALL FORECAST
FOR THE FLORIDA PENINSULA TODAY...
...TEMPERATURES CONTINUE TO SLOWLY MODERATE ACROSS THE SOUTHERN
U.S. AS MOST OF THE COUNTRY SEES A PERIOD OF ABOVE AVERAGE, MILDER
TEMPERATURES...
PORTIONS OF THE PACIFIC NORTHWEST AND INTO THE NORTHERN GREAT
BASIN AND ROCKIES ARE RECEIVING HEAVY RAINFALL AND GUSTY WINDS
THAT KEEP THE THREAT FOR AREAS OF FLOODING TODAY AS THE ACTIVE
PACIFIC STORM TRACK/ATMOSPHERIC RIVER PERSISTS. SNOW LEVELS ARE
EXPECTED TO REMAIN HIGH WITH MILD TEMPERATURES IN PLACE WHICH WILL
ALLOW FOR STRONG UPSLOPE FLOW ALONG THE OLYMPICS, COASTAL RANGES,
AND CASCADES WITH HEAVY RAINFALL EXPECTED. WPC HAS A SLIGHT RISK
OF EXCESSIVE RAINFALL (LEVEL 2/4) IN EFFECT TODAY FOR PORTIONS OF
THE REGION AS ADDITIONAL RAINFALL ON TOP OF ALREADY SATURATED
GROUNDS MAY LEAD TO SOME SCATTERED INSTANCES OF FLOODING. THE
SYSTEM WILL CONTINUE ITS EASTWARD TRACK MONDAY NIGHT; WHICH WILL
SPREAD ADDITIONAL RAINFALL TO THE NORTHERN GREAT BASIN AND
ROCKIES. SNOW LEVELS WILL FALL BEHIND THE PASSAGE OF A COLD FRONT
AND SOME SNOW MAY MIX IN FOR LOWER VALLEY ELEVATIONS INTO MONDAY
NIGHT, THOUGH LITTLE TO NO ACCUMULATIONS ARE EXPECTED. HIGH
MOUNTAIN ELEVATIONS WILL SEE HEAVY SNOW, PARTICULARLY THE THE
NORTHERN CASCADES AND RANGES OF THE NORTHERN ROCKIES. VERY STRONG
WINDS WITH GUSTS UPWARDS OF 60 MPH ARE ALSO EXPECTED THROUGHOUT
THE REGION THROUGH MONDAY NIGHT. CONDITIONS WILL FINALLY START TO
DRY OUT FOLLOWING THE PASSAGE OF THIS SYSTEM WITH SOME LINGERING
LIGHTER AND MORE SCATTERED SHOWERS TUESDAY.
LOCALLY VERY HEAVY DOWNPOURS ARE EXPECTED AND SOME ISOLATED FLASH
FLOODING WILL BE POSSIBLE FOR URBAN AREAS OF SOUTH FLORIDA THIS
AFTERNOON AND INTO TUESDAY MORNING AS VERY MOIST GULF AIR FLOWING
NORTHWARD OVER THE FLORIDA PENINSULA AHEAD OF A LOW PRESSURE
SYSTEM. THE AREAL EXTEND OF THUNDERSTORMS WILL DECREASE AS THE
SYSTEM PROGRESSES FURTHER EAST OVER THE ATLANTIC OCEAN.
ELSEWHERE, A PAIR OF QUICK MOVING UPPER-LEVEL SHORTWAVES WILL
BRING SOME LIGHT ISOLATED TO SCATTERED RAIN/SNOW SHOWERS FROM THE
NORTHERN PLAINS EAST THROUGH THE GREAT LAKES INTO THE INTERIOR
NORTHEAST THE NEXT COUPLE OF DAYS.
AS THE ARCTIC AIR ERODES TEMPERATURES ACROSS MUCH OF THE CENTRAL
AND SOUTHEAST STATES WILL MODERATE TO NEAR OR JUST ABOVE SEASONAL
AVERAGES. DAILY HIGHS SHOULD REACH THE UPPER 50S TO MID-60S FOR
MOST LOCATIONS. THE ENTIRE SOUTHEAST WILL BE ABOVE AVERAGE BY
TUESDAY AS HIGHS RISE INTO THE MID-60S TO LOW 70S. A WARM-UP WILL
ALSO CONTINUE FOR THE EAST COAST AS HIGHS RISE INTO THE 40S FOR
NEW ENGLAND AND THE NORTHERN MID-ATLANTIC AND THE 50S AND 60S FOR
THE SOUTHERN MID-ATLANTIC AND CAROLINAS. FOR THE CENTRAL AND
WESTERN STATES DAILY TEMPERATURES WILL AVERAGE 10-15 DEGREES
WARMER UNDER A BROAD UPPER RIDGE. HIGHS ARE FORECAST FROM THE 40S
AND 50S IN THE MIDWEST, THE 50S AND 60S FOR THE GREAT BASIN AND
NORTHERN/CENTRAL PLAINS, THE 60S AND 70S FOR CALIFORNIA AND THE
SOUTHERN PLAINS, AND THE 80S FOR THE DESERT SOUTHWEST. ONE
EXCEPTION WILL BE IN THE NORTHWEST WHERE AVERAGE HIGHS IN THE 40S
AND 50S ARE FORECAST FOLLOWING A COLD FRONT PASSAGE.
CAMPBELL/PUTNAM
GRAPHICS AVAILABLE AT
HTTPS://WWW.WPC.NCEP.NOAA.GOV/BASICWX/BASICWX_NDFD.PHP
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